1 files changed, 67 insertions, 0 deletions
diff --git a/daemon/src/main/java/org/openslx/taskmanager/Environment.java b/daemon/src/main/java/org/openslx/taskmanager/Environment.java
new file mode 100644
index 0000000..acbfad4
--- /dev/null
+++ b/daemon/src/main/java/org/openslx/taskmanager/Environment.java
@@ -0,0 +1,67 @@
+package org.openslx.taskmanager;
+
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.Map.Entry;
+
+import org.apache.log4j.Logger;
+
+/**
+ * Holds the environment that tasks running a system command *should*
+ * use. The environment is read from a config file.
+ */
+public class Environment
+{
+
+	private static final Logger log = Logger.getLogger( Environment.class );
+
+	private static Map<String, String> env = new LinkedHashMap<>();
+
+	public static boolean load( String fileName )
+	{
+		try {
+			FileReader fileReader = new FileReader( fileName );
+			BufferedReader bufferedReader = new BufferedReader( fileReader );
+
+			Map<String, String> env = new LinkedHashMap<>();
+			String line = null;
+			while ( ( line = bufferedReader.readLine() ) != null ) {
+				if ( !line.matches( "^[a-zA-Z0-9_]+=" ) )
+					continue;
+				String[] part = line.split( "=", 2 );
+				env.put( part[0], part[1] );
+			}
+
+			bufferedReader.close();
+
+			Environment.env = env;
+			log.info( "Loaded " + env.size() + " environment lines." );
+		} catch ( IOException e ) {
+			log.info( "Could not load environment definition from " + fileName + ". Processes might use the same environment as this thread." );
+			return false;
+		}
+		return true;
+	}
+
+	public static void set( Map<String, String> environment )
+	{
+		environment.clear();
+		environment.putAll( env );
+	}
+
+	public static String[] get()
+	{
+		// Get reference to env so it doesn't change while in this function (load() from other thread)
+		Map<String, String> env = Environment.env;
+		String ret[] = new String[ env.size() ];
+		int i = 0;
+		for ( Entry<String, String> it : env.entrySet() ) {
+			ret[i++] = it.getKey() + "=" + it.getValue();
+		}
+		return ret;
+	}
+
+}